presence_xml: fix cross-compilation

modules_k/presence_xml/Makefile

@@ -6,19 +6,17 @@ auto_gen=
 NAME=presence_xml.so
 LIBS=
 
+ifeq ($(CROSS_COMPILE),)
 XML2CFG=$(shell which xml2-config)
+endif
 
 ifneq ($(XML2CFG),)
-
 	DEFS += $(shell $(XML2CFG) --cflags )
 	LIBS += $(shell $(XML2CFG) --libs)
-
 else
-
-	DEFS+=-I/usr/include/libxml2 -I$(LOCALBASE)/include/libxml2 \
+	DEFS+=-I$(LOCALBASE)/include/libxml2 \
 		-I$(LOCALBASE)/include
 	LIBS+=-L$(LOCALBASE)/lib -lxml2
-
 endif
 
 DEFS+=-DKAMAILIO_MOD_INTERFACE